[mirror_ubuntu-bionic-kernel.git] / arch / alpha / include / asm / percpu.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ALPHA_PERCPU_H
#define __ALPHA_PERCPU_H

/*
 * To calculate addresses of locally defined variables, GCC uses
 * 32-bit displacement from the GP. Which doesn't work for per cpu
 * variables in modules, as an offset to the kernel per cpu area is
 * way above 4G.
 *
 * Always use weak definitions for percpu variables in modules.
 */
#if defined(MODULE) && defined(CONFIG_SMP)
#define ARCH_NEEDS_WEAK_PER_CPU
#endif

#include <asm-generic/percpu.h>

#endif /* __ALPHA_PERCPU_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
1da177e4 LT	2	#ifndef __ALPHA_PERCPU_H
1da177e4 LT	3	#define __ALPHA_PERCPU_H
9aa7a7d5	4
9267b4b3	5	/*
9b7dbc7d TH	6	* To calculate addresses of locally defined variables, GCC uses
	7	* 32-bit displacement from the GP. Which doesn't work for per cpu
	8	* variables in modules, as an offset to the kernel per cpu area is
	9	* way above 4G.
9267b4b3	10	*
9b7dbc7d	11	* Always use weak definitions for percpu variables in modules.
9267b4b3	12	*/
9b7dbc7d TH	13	#if defined(MODULE) && defined(CONFIG_SMP)
9b7dbc7d TH	14	#define ARCH_NEEDS_WEAK_PER_CPU
9aa7a7d5 TH	15	#endif
9aa7a7d5 TH	16
9b7dbc7d	17	#include <asm-generic/percpu.h>
1da177e4 LT	18
1da177e4 LT	19	#endif /* __ALPHA_PERCPU_H */